package com.example.service;


import com.baomidou.mybatisplus.extension.service.IService;
import com.example.entity.Dianying;
import com.example.vo.DianyingVo;

import javax.servlet.http.HttpServletRequest;
import java.util.List;
import java.util.Map;

public interface DianyingService extends IService<Dianying> {
    Dianying add(Dianying dianying);
    void delete(Long id);
    void update(Dianying dianying);
    Dianying findById(Integer id);
    DianyingVo findPage(DianyingVo dianyingVo);
	
    void deleteList(List<Dianying> list);
	
	
	List<Map<String, Object>> daochuexcel();

    Map<String, Double> recommend(Integer userId, Integer num);
    List<Dianying> findByIds(List<Integer> ids);
}
